求助！关于npm install 老是出现这个问题

pm ERR! path E:\16美工\sell\node_modules\vue-router
npm ERR! code EISGIT
npm ERR! git E:\16美工\sell\node_modules\vue-router: Appears to be a git repo or submodule.
npm ERR! git     E:\16美工\sell\node_modules\vue-router
npm ERR! git Refusing to remove it. Update manually,
npm ERR! git or move it out of the way first.


npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\light\AppData\Roaming\npm-cache\_logs\2018-03-28T15_00_01_234Z-debug.log